Update supported-instances-and-regions.md

Author: ianwhytez

articles/baremetal-infrastructure/workloads/nc2-ga/supported-instances-and-regions.md

@@ -22,11 +22,16 @@ Nutanix Clusters on Azure supports:
 
 ## Supported regions
 
-This public preview release supports the following Azure regions:
+NC2 on Azure supports the following Azure regions, using AN36:
 
 * East US
 * West US 2
 
+NC2 on Azure supports the following Azure regions, using AN36P:
+
+* East US 2
+* North Central US
+
 ## Next steps
 
 Learn more: